Overwintering Geraniums: Dormant Storage and Cuttings

Geraniums (Pelargonium) are tender perennials easily overwintered two ways: dormant bare-root storage or as potted plants. Both work well with proper technique.

Method 1: Dormant Bare-Root Storage (Traditional)

1. Before frost, dig plants, keeping as much root ball as possible.
2. Shake off soil, soak roots in tepid water briefly.
3. Hang upside down in a cool (45–50°F), dark, airy place—basement, unheated garage.
4. Do not water all winter.
5. 4 weeks before last frost, pot up in fresh mix, water, and place in bright light.
6. Harden off after frost danger passes.

Method 2: Potted Dormancy (Easier, More Reliable)

1. Transplant into 8-inch pots with fertile mix before frost.
2. Keep in cool, bright location (45–55°F).
3. Water sparingly—just enough to prevent shriveling.
4. In late winter, increase water and light to stimulate growth.

Taking Cuttings (Any Time)

1. Cut 6-inch tender shoots, remove lower leaves.
2. Dip in rooting hormone.
3. Plant in moist potting mix, cover with clear plastic.
4. Place in indirect light or under fluorescents.
5. Check for roots in 2 weeks (gentle tug = resistance).
6. Remove cover, grow on as seedlings.

Both methods yield healthy plants for spring. Cuttings are great for multiplying favorite varieties.